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https://issues.apache.org/jira/browse/SPARK-19411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-19411.
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Resolution: Fixed
Assignee: Liang-Chi Hsieh
Fix Version/s: 2.2.0
> Remove the metadata used to mark optional columns in merged Parquet schema
> for filter predicate pushdown
> --------------------------------------------------------------------------------------------------------
>
> Key: SPARK-19411
> URL: https://issues.apache.org/jira/browse/SPARK-19411
> Project: Spark
> Issue Type: Improvement
> Reporter: Liang-Chi Hsieh
> Assignee: Liang-Chi Hsieh
> Fix For: 2.2.0
>
>
> There is a metadata introduced before to mark the optional columns in merged
> Parquet schema for filter predicate pushdown. As we upgrade to Parquet 1.8.2
> which includes the fix for the pushdown of optional columns, we don't need
> this metadata now.
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